Chute.



W. DBEVER. OHUTE.

APPLICATION FILED 001221. 1909.

965,624. Patented July 26,1910.

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Patented Jfil 26,1910.

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Specification of Letters Eatent.

Patented July 26, 1916.

Application filed October 27, 1909. Serial No. 524,807.

To all whom it may concern: 1

Be it known that 1, WILLIAM Dnnvnn, a citizen of the United States, and a resident of Tomahawk, in the county of Lincoln and State of Wisconsin, have invented a new and Improved Chute, of which the following is a full, clear, and exact description.

The invention is animprovement in chutes for cellars and similar places for passing coal, wood, vegetables, etc., and has in view a tubular chute of any suitable crosssectional form having a door closing the chute at the outer end, the said door having a screened ventilating opening and provided with a relatively smaller door seating over the screen.

The invention further contemplates a removable inner door for the chute, locked and unlocked by a slight turn.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of ref erence indicate corresponding parts in all the views.

Figure 1 is a side view of a chute constructed in accordance with my invention as applied to the wall of a cellar; Fig. 2 is a similar view partly in central vertical section; Fig. 3 is an outer end view of the chute; Fig. 4 is an inner end view of the chute; Fig. 5 is a perspective view of a locking bolt for the outer door of the chute; Fig. 6 is an outer end view of the chute with the ventilating door partly broken away; Fig. 7 is a central vertical section through the outer end portion of the chute, and Fig. 8 is a detail view of the are or segmental bar for the ventilating door.

The body of the chute 10 is of tubular form, shown to be cylindrical, but may be of any suitable cross-sectional shape, the outer end of the chute body being provided with an external ring 11, having spaced lugs 12 at the top, through which passes a hinge pin 13, the pin also passin through lugs 14 arranged adjacent to the Tugs 12 and rigid with a door 15, closing the outer end of the chute, the door 15 having a central ventilating opening over which a relatively smaller door 16 seats. The door 16, like the door 15, is slightly dished or constructed with an inwardly-turned marginal flange, as shown in Fig. 2, with the flange encircling an annular rib 17 formed on the outer face of the larger door 15. On the upper portion of the larger door 15 are spaced lugs 18, through which a hinge pin 19 passes, the same also passing through lugs 20 rigid with the smaller door 16, the lugs inclining slightly outwardly and upwardly so that when the smaller door 16 is open the top thereof will stand in relatively close to the larger door 15, and in connection with the rib 17, prevent rain from passing into the ventilating opening. This ventilating opening is preferably covered by a screen 21, fixed to the door 15.

To retain the door 16 open to different extents within certain limits and lock it in closed position, is an are or segment bar 22, as shown in detail in Fig. 8, passing through a slot 23 in the door 15 and hinged at its outer end between lugs 24:, rigid with the lower portion of the door 16, the are or segment bar having teeth on its bottom edge, which are adapted to engage the door 15 at the bottom edge of the slot 23, the teeth being so arranged that when the smaller door 16 is closed, it is automatically locked and cannot be re-opened, except by raising the segmental bar 22, which must be done by first opening the larger door 15. The bar 22 has a handle 25, rigid with the pivot pin carrying the outer end of the bar, as shown in Figs. 1, 3 and 7.

It is generally unnecessary to open the smaller door 16, to the full extent allowed by its hinges, for which reason a cross pin 26 is placed in the inner end of the bar 22, limiting the extent to which the bar may be drawn out through the slot 23. The tooth of the bar 22 adjacent to its pivot is of a nature to lock the door 16 in closed position, and the remaining teeth serve to retain the door open at various angles.

The inner end of the tubular body of the chute is provided with bayonet or L-shaped slots entering the inner edge, into which are adapted to pass radially-projecting pins 27 rigid with an inner door 28, the latter having knobs 29 by which the door may be given a slight turn in looking it to and unlooking it from the chute. For locking the outer larger door 15, is a rod 30, detachably engaged with a staple 31, fixed to the lower inner face of the door 15 and extending through an opening 32 at the bottom of the door 28, where it is provided with a flattened end portion detachably secured to the body of the chute by a pin 33.

Having thus described my invention, I claim as new and desire to secure by Letters Patent: v

1. A tubular chute having doors of relatively different sizes closing the outer end thereof, with both of the said doors hinged at the top to swing upwardly and outwardly in opening, and with the smaller door seating over a ventilating opening in the larger door.

2. A tubular chute having a door closing the outer end thereof, provided with a ventilating opening, a second door hinged to the first to swing upwardly and outwardly and to seat over said opening, and a bar passing through a slot in the first mentioned door, extending from the ventilating opening, with the bar hinged to the lower portion of the second door to swing upwardly and WILLIAM DREVER.

\Vitnesses PAUL R. PHILLEO, G. WV. SHELDON. 

